US4327007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene terephthalate composition containing aliphatic plasticizer and nucleating agent
Assignee: Honeywell International Inc
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Filing: 1980-12-22
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Granted: 1982-04-27
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Expires: 2000-12-22
Abstract
Abstract A polyester composition comprising: the sodium salt of a hydrocarbon acid; and the ester of an aliphatic carboxylic acid having at least one carboxyl group and from 2 to 8 carbon atoms; and an alcohol having one hydroxyl group and from 1 to 10 carbon atoms. The sodium salt is preferably sodium stearate and the ester is preferably di(2-ethyl-hexyl)adipate. The composition can be filled and have impact modifiers.
Inventors
- 👤 Nicholas Vanderkooi, Jr.
- 👤 Harold W. Tuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/10; C08K5/11
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
98 words
A composition comprising: polyethylene terephthalate; up to about 15 percent based on the weight of the polyethylene terephthalate of a plasticizer which comprises an ester of an aliphatic carboxylic acid having from 2 to 8 carbon atoms and at least 1 carboxyl group, and an alcohol having from 1 to 10 carbon atoms and 1 hydroxyl group; and up to about 10 percent, based on the weight of the polyethylene terephthalate, of a nucleating agent which comprises the sodium salt of a hydrocarbon acid having from 9 to about 25 carbon atoms, and at least 1 carboxyl group.
Claim 2
Dependent Claim
98 words
A composition comprising: polyethylene terephthalate; up to about 15 percent based on the weight of the polyethylene terephthalate of a plasticizer which comprises an ester of an aliphatic carboxylic acid having from 2 to 8 carbon atoms and at least 1 carboxyl group, and an alcohol having from 1 to 10 carbon atoms and 1 hydroxyl group; and up to about 10 percent, based on the weight of the polyethylene terephthalate, of a nucleating agent which comprises the sodium salt of a hydrocarbon acid having from 9 to about 25 carbon atoms, and at least 1 carboxyl group.
Claim 3
Dependent Claim
27 words
The composition as recited in claim 1 wherein there is from about 0.1% to about 10%, based on the weight of the polyethylene terephthalate, of the plasticizer.
Claim 4
Dependent Claim
27 words
The composition as recited in claim 2 wherein there is from about 1% to about 6%, based on the weight of the polyethylene terephthalate, of the plasticizer.
Claim 5
Dependent Claim
28 words
The composition as recited in claims 1 or 3 wherein the nucleating agent is the sodium salt of a hydrocarbon acid having from 16 to 18 carbon atoms.
Claim 6
Dependent Claim
12 words
The composition as recited in claim 4 wherein the plasticizer is di(2-ethyl-hexyl)adipate.
Claim 7
Dependent Claim
26 words
The composition as recited in claim 4 wherein there is from about 0.2% to 2%, based on the weight of the polyethylene terephthalate, of nucleating agent.
Claim 8
Dependent Claim
14 words
The composition as recited in claim 4 wherein the nucleating agent is sodium stearate.
Claim 9
Dependent Claim
20 words
The composition as recited in claim 7 where there is from about 0.2% to about 1% of the sodium stearate.
Claim 10
Dependent Claim
12 words
The composition as recited in claim 8 wherein the plasticizer in di(2-ethyl-hexyl)adipate.
Claim 11
Dependent Claim
23 words
The composition as recited in claim 1 further comprising up to 150%, based on the weight of the polyethylene terephthalate, of a filler.
Claim 12
Dependent Claim
28 words
The composition as recited in claim 10 wherein there is between about 30% and about 90%, based on the weight of the polyethylene terephthalate, of glass fiber filler.
Claim 13
Dependent Claim
25 words
The composition as recited in claim 1, 4 further comprising up to 10%, based on the weight of the polyethylene terephthalate, of an impact modifier.
Claim 14
Dependent Claim
34 words
The composition as recited in claim 12 wherein the impact modifier is selected from a group consisting of the following copolymers: ethylene acrylic acid, methylene acrylic acid, ethylene ethyl acrylate, and ethylene vinyl acetate.
Claim 15
Dependent Claim
26 words
The composition as recited in claim 13 containing between about 2% and about 6%, based on the weight of the polyethylene terephthalate, of the impact modifier.
Claim 16
Dependent Claim
19 words
The composition as recited in claim 4, further comprising up to 3% of the polyethylene terephthalate of an epoxy.
Claim 17
Dependent Claim
25 words
The composition as recited in claim 1 containing sufficient nucleating agent for the composition to have a T cc of at least about 210° C.
Claim 18
Dependent Claim
24 words
The composition as recited in claim 1 containing sufficient plasticizer for the composition to have a T ch of not greater than 110° C.
Claim 19
Dependent Claim
39 words
A composition comprising: polyethylene terephthalate; from about 1% to about 6%, based on the weight of the polyethylene terephthalate, of di(2-ethyl-hexyl)adipate; and from about 0.2% to about 2%, based on the weight of the polyethylene terephthalate, of sodium stearate.
Claim 20
Dependent Claim
39 words
A composition comprising: polyethylene terephthalate; from about 1% to about 6%, based on the weight of the polyethylene terephthalate, of di(2-ethyl-hexyl)adipate; and from about 0.2% to about 2%, based on the weight of the polyethylene terephthalate, of sodium stearate.
Claim 21
Dependent Claim
23 words
The composition as recited in claim 18 further comprising up to 150%, based on the weight of the polyethylene terephthalate, of a filler.
Claim 22
Dependent Claim
27 words
The composition as recited in claim 19 wherein there is from about 30% to about 90%, based on the weight of the polyethylene terephthalate, of a filler.
Claim 23
Dependent Claim
13 words
The composition as recited in claim 20 wherein the filler is glass fibers.
Claim 24
Dependent Claim
26 words
The composition as recited in claims 18 or 19 further comprising about 2% to about 6%, by weight of the polyethylene terephthalate, of an impact modifier.
Claim 25
Dependent Claim
16 words
The composition as recited in claim 20 wherein the impact modifier is ethylene acrylic acid copolymer.
Claim 26
Dependent Claim
19 words
The composition as recited in claim 18 further comprising up to 3% of the polyethylene terephthalate of an epoxy.
References Cited (Backward Citations)
US3516957A
Cited
NL7901609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |